------- Comment #2 from pinskia at gcc dot gnu dot org 2006-09-19 03:12 -------
Here is a reduced testcase:
int
bar (int b, int c)
{
return 0;
}
int
main ()
{
bar (8, 4);
return bar (7, 4);
}
-----
This is due to tail calls.
> The call instruction is corrupted.
No, it is not, it is correct. Just the function looks like it is not set to be
right. Anyways I think the Function decl is messed up to begin with.
With -O1, we get an indirect function call which is just wrong.
.main:
mflr 0
std 0,16(1)
stdu 1,-112(1)
li 3,7
li 4,4
ld 9,[EMAIL PROTECTED](2)
ld 0,0(9)
mtctr 0
std 2,40(1)
ld 2,8(9)
ld 11,16(9)
bctrl
ld 2,40(1)
addi 1,1,112
ld 0,16(1)
mtlr 0
blr
.LC0:
.tc T.0[TC],T.0
.section ".text"
I might bet this might have an issue on ppc-aix also even not in 64bit mode
because that is a TOC based ABI also.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Component|tree-optimization |target
Ever Confirmed|0 |1
GCC target triplet| |powerpc64-linux
Last reconfirmed|0000-00-00 00:00:00 |2006-09-19 03:12:51
date| |
Summary|ICE with -ipa-cp and -m64 |ICE with -ipa-cp and -m64
| |(tail calls)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29122
